[Bug] JavaScript Errors on the UX page has inconsistent fields

[vigneshshanmugam]

Kibana version: Master branch

Browser version: All Browsers

Original install method (e.g. download page, yum, from source, etc.): from source

Describe the bug:
User Experience page JavaScript Errors tab has inconsistent error fields/group compared to the APM ones.

Steps to reproduce:

1. Click on the User Experience tab under Observability
2. Scroll down to the JavaScript Errors section
3. Compare the values with the existing APM errors page for same service

Expected behaviour:
Both of the pages must have same consistent errors and filtering on the URL in the UX App should show correct percentage of errors.

Screenshots (if relevant):

[elasticmachine]

Pinging @elastic/uptime (Team:uptime)

[shahzad31]

Did you apply any filter for it or it appeared as you landed on the page?

[vigneshshanmugam]

The Error panel doesn't seem to be fixed still. Reopening again.